US4407045A - Ladder hinge and multi-position locking mechanism therefor - Google Patents
Ladder hinge and multi-position locking mechanism therefor Download PDFInfo
- Publication number
- US4407045A US4407045A US06/333,229 US33322981A US4407045A US 4407045 A US4407045 A US 4407045A US 33322981 A US33322981 A US 33322981A US 4407045 A US4407045 A US 4407045A
- Authority
- US
- United States
- Prior art keywords
- detent
- hinge
- guide shaft
- locking
- aligned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
- E05D11/1007—Devices for preventing movement between relatively-movable hinge parts with positive locking
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32262—At selected angle
- Y10T403/32319—At selected angle including pivot stud
- Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
Abstract
Description
Claims (28)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/333,229 US4407045A (en) | 1981-12-21 | 1981-12-21 | Ladder hinge and multi-position locking mechanism therefor |
US06/538,475 US4566150A (en) | 1981-12-21 | 1983-10-03 | Ladder hinge and multi-position locking mechanism therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/333,229 US4407045A (en) | 1981-12-21 | 1981-12-21 | Ladder hinge and multi-position locking mechanism therefor |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/538,475 Continuation US4566150A (en) | 1981-12-21 | 1983-10-03 | Ladder hinge and multi-position locking mechanism therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
US4407045A true US4407045A (en) | 1983-10-04 |
Family
ID=23301891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/333,229 Expired - Lifetime US4407045A (en) | 1981-12-21 | 1981-12-21 | Ladder hinge and multi-position locking mechanism therefor |
Country Status (1)
Country | Link |
---|---|
US (1) | US4407045A (en) |
Cited By (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4566150A (en) * | 1981-12-21 | 1986-01-28 | Little Giant Industries, Inc. | Ladder hinge and multi-position locking mechanism therefor |
US4619542A (en) * | 1984-03-23 | 1986-10-28 | Aprica Kassai Kabushikikaisha | Baby carriage grip rod locking mechanism |
US4666327A (en) * | 1986-09-22 | 1987-05-19 | George Su | Joint for foldable aluminum ladders |
US4666328A (en) * | 1986-03-04 | 1987-05-19 | Woo Kyong Industrial Co., Ltd. | Positioning joint for folding ladders |
US4697305A (en) * | 1985-02-14 | 1987-10-06 | Harold R. Wing | Release mechanism for locking hinge for multi-positioned ladder |
US4773503A (en) * | 1987-09-11 | 1988-09-27 | Robert L. Pease | Ladder hinge |
GB2206152A (en) * | 1987-06-27 | 1988-12-29 | Spraymatic Co | Supports for spray guns |
US4917341A (en) * | 1987-12-22 | 1990-04-17 | Mpm Music - S.R.L. | Trestle with crossed legs for supporting musical keyboards |
EP0369256A1 (en) * | 1988-11-12 | 1990-05-23 | KRAUSE-WERK GMBH & CO. KG | Hinge ladder |
US4934485A (en) * | 1988-02-08 | 1990-06-19 | Robert Pease | Combination ladder and hand truck |
US4951780A (en) * | 1988-08-08 | 1990-08-28 | Kim Myung H | Combination ladder and height adjustable scaffold |
US5116025A (en) * | 1990-08-13 | 1992-05-26 | Sam Kiniry | Cantilevered, retractable handrail |
US5163532A (en) * | 1990-07-12 | 1992-11-17 | Mccarty George W | Folding ladder |
US5209215A (en) * | 1991-11-15 | 1993-05-11 | Saxon International, Inc. | Folding crossbow stock |
US5228535A (en) * | 1990-07-12 | 1993-07-20 | Mccarty George W | Folding ladder |
US5350038A (en) * | 1993-02-01 | 1994-09-27 | Lazarus Jonathan F | Foldable extension ladder and ladder sections therefor |
US5620272A (en) * | 1995-05-10 | 1997-04-15 | Sheng; Chim-Yuem | Adjustable joint assembly for ladder sections |
WO1999055997A1 (en) * | 1998-04-28 | 1999-11-04 | Henrik Lindberg | Ladder combined with three different transport functions |
US6196568B1 (en) * | 1999-03-12 | 2001-03-06 | Sunrise Medical Hhg Inc. | Robust adjustable rotary positioning mechanism |
US6343406B1 (en) * | 2000-08-14 | 2002-02-05 | Tom Yeh | Hinge on ladder |
US6488599B2 (en) | 2000-06-06 | 2002-12-03 | Lifetime Products, Inc. | System and method for basketball goal height adjustment |
US20030217888A1 (en) * | 2002-02-07 | 2003-11-27 | Dennis Simpson | Convertible ladder |
US6688797B2 (en) * | 2001-07-13 | 2004-02-10 | Jae Yun Park | Hinge for foldable ladders |
US6711780B2 (en) | 2001-08-22 | 2004-03-30 | Sinclair Worldwide, Inc. | Hinge for collapsible ladders |
US20040140156A1 (en) * | 2002-11-11 | 2004-07-22 | Moss Newell R. | Combination ladders, ladder components and methods of manufacturing same |
US20040218968A1 (en) * | 2003-05-01 | 2004-11-04 | Jeffrey Beaver | Hinge lock indicator for center-folding ladder |
KR100458926B1 (en) * | 2002-01-26 | 2004-12-03 | 주식회사 매직캔 | Hinge for collapsible ladder |
US6866117B2 (en) | 2002-04-05 | 2005-03-15 | Wing Enterprises, Inc. | Light weight ladder systems and methods |
US6886659B2 (en) | 2002-02-07 | 2005-05-03 | Tricam Industries, Inc. | Convertible ladder |
US6892784B2 (en) | 2003-03-06 | 2005-05-17 | Paul A. Maas | Stabilized portable room divider |
US20050121260A1 (en) * | 2003-11-11 | 2005-06-09 | Leng Lu H. | Lockable ladder hinge |
US20050268434A1 (en) * | 2004-06-07 | 2005-12-08 | Burbrink Philip W | Lockable hinge |
US20050274571A1 (en) * | 2004-06-11 | 2005-12-15 | Dennis Simpson | Convertible fiberglass ladder |
US20070023600A1 (en) * | 2005-07-29 | 2007-02-01 | Lg Electronics Inc. | Stand for flat-panel display |
US20070191148A1 (en) * | 2006-02-13 | 2007-08-16 | Shannon Christopher J | Self-storing basketball goal system |
US20070191149A1 (en) * | 2006-02-13 | 2007-08-16 | Shannon Christopher J | Self-storing basketball goal system |
US20070227819A1 (en) * | 2006-03-28 | 2007-10-04 | Layfield L D | Window cleaning ladder |
US20080066261A1 (en) * | 2004-05-14 | 2008-03-20 | Parker Thomas W | Step stool, hinge and method |
US20080178543A1 (en) * | 2007-01-29 | 2008-07-31 | Maas Paul A | Portable room divider with glide feet |
US20080181720A1 (en) * | 2007-01-29 | 2008-07-31 | Mobiletron Electronics Co., Ltd. | Joint positioning structure |
US20080185889A1 (en) * | 2007-02-01 | 2008-08-07 | Nathan Kipperman | Adjustable furniture |
US20090160150A1 (en) * | 2007-12-21 | 2009-06-25 | Mark Johnson | Folding scooter |
US20090229918A1 (en) * | 2008-03-07 | 2009-09-17 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
US20110018226A1 (en) * | 2009-07-21 | 2011-01-27 | Huffy Corporation | Pivot mechanism for scooters, tricycles and the like |
WO2012115963A2 (en) | 2011-02-22 | 2012-08-30 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods |
US20130026734A1 (en) * | 2010-11-26 | 2013-01-31 | Shanghai Magic Wheels Sporting Goods Co., Ltd. | Scooter with folding device and folding device |
USD710031S1 (en) | 2012-11-15 | 2014-07-29 | Tricam Industries, Inc. | Step stool |
US20140284140A1 (en) * | 2011-09-11 | 2014-09-25 | Gilad Omri | Telescopic ladder and locking mechanism thereof |
WO2015035211A2 (en) | 2013-09-06 | 2015-03-12 | Wing Enterprises, Incorporated | Adjustable ladders, ladder components and related methods |
USD736861S1 (en) | 2014-12-01 | 2015-08-18 | Radio Flyer Inc. | Scooter |
US20160076304A1 (en) * | 2014-09-12 | 2016-03-17 | Wing Enterprises, Incorporated | Ladders, rung assemblies for ladders and related methods |
US20160106612A1 (en) * | 2012-09-07 | 2016-04-21 | Allen Medical Systems, Inc. | Multi-axis joint for a spar of a limb holder |
GB2531813A (en) * | 2014-11-03 | 2016-05-04 | Mitre Sports Int Ltd | Foldable goal post assembly |
USD756465S1 (en) | 2015-03-06 | 2016-05-17 | Radio Flyer Inc. | Scooter |
US20170356244A1 (en) * | 2016-06-14 | 2017-12-14 | Wing Enterprises, Incorporated | Ladders, ladder hinges and related methods |
US20180252037A1 (en) * | 2017-03-03 | 2018-09-06 | New-Tec Integration (Xiamen) Co., Ltd. | Deformable herringbone ladder with straight ladder function |
US20180274296A1 (en) * | 2017-03-21 | 2018-09-27 | Tricam Industries, Inc. | Adjustable hinge for a multi-position ladder |
USD833643S1 (en) | 2017-07-07 | 2018-11-13 | Tricam Industries, Inc. | Integrated ladder tray hook |
CN109296628A (en) * | 2018-12-09 | 2019-02-01 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of high-precision shaft fast lockign apparatus |
US20190136624A1 (en) * | 2017-11-07 | 2019-05-09 | Wan Yu Chen | Mechanical structure |
USD855833S1 (en) | 2017-01-04 | 2019-08-06 | Tricam Industries, Inc. | Ladder rail |
USD860476S1 (en) | 2017-01-04 | 2019-09-17 | Tricam Industries, Inc. | Hinge for a multi-position ladder |
US10487580B2 (en) | 2013-01-18 | 2019-11-26 | Suzhou Dongrun Ladder Co., Ltd. | Thick plate type joint lock for ladder connection |
US10487576B2 (en) | 2016-03-04 | 2019-11-26 | Wing Enterprises, Incorporated | Adjustment mechanisms, ladders incorporating same and related methods |
US20190368271A1 (en) * | 2018-01-30 | 2019-12-05 | Werner Co. | Multipurpose Ladder and Method |
US20190376342A1 (en) * | 2018-06-08 | 2019-12-12 | Wing Enterprises, Incorporated | Ladders, feet for ladders and hinges for ladders |
US10597941B2 (en) | 2013-09-27 | 2020-03-24 | Wing Enterprises, Incorporated | Step ladders, components for step ladders and related methods |
USD935055S1 (en) | 2019-08-07 | 2021-11-02 | Tricam Industries, Inc. | Hinge for a multi-position ladder |
US11452422B2 (en) * | 2016-11-21 | 2022-09-27 | Samsung Electronics Co., Ltd. | Cleaner and cleaning device having the same |
US11466516B2 (en) * | 2017-11-10 | 2022-10-11 | Little Giant Ladder Systems, Llc | Walkthrough and standoff mechanisms for ladders, ladders incorporating same and related methods |
USD966557S1 (en) | 2018-10-19 | 2022-10-11 | Little Giant Ladder Systems, Llc | Ladder |
USD969347S1 (en) | 2018-10-19 | 2022-11-08 | Little Giant Ladder Systems, Llc | Flip-up ladder |
US11788353B2 (en) | 2018-07-27 | 2023-10-17 | Little Giant Ladder Systems, Llc | Last step indicator for ladders and ladders incorporating same |
WO2023230368A1 (en) | 2022-05-27 | 2023-11-30 | Little Giant Ladder Systems, Llc | Multifunction button for ladder adjustment |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3692143A (en) * | 1970-01-14 | 1972-09-19 | Kuemmerlin Walter | Extensible ladder |
US3811151A (en) * | 1972-04-11 | 1974-05-21 | Zarges Leichtbau Gmbh | Joint for collapsible ladders |
US3955240A (en) * | 1975-04-05 | 1976-05-11 | Firma Wilhelm Bahmuller, Maschinen- Und Apparatebau | Multi-position safety lock joint, particularly for folding ladders |
US4025109A (en) * | 1973-05-23 | 1977-05-24 | Firma Fritz Keiper | Fitting for adjustably connecting a backrest member to a seat member |
US4210224A (en) * | 1979-01-05 | 1980-07-01 | Kummerlin Nikolaus A | Longitudinally variable ladder |
US4216844A (en) * | 1977-07-20 | 1980-08-12 | Zarges Leichtbau Gmbh | Fitting for joints of ladder sections |
-
1981
- 1981-12-21 US US06/333,229 patent/US4407045A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3692143A (en) * | 1970-01-14 | 1972-09-19 | Kuemmerlin Walter | Extensible ladder |
US3811151A (en) * | 1972-04-11 | 1974-05-21 | Zarges Leichtbau Gmbh | Joint for collapsible ladders |
US4025109A (en) * | 1973-05-23 | 1977-05-24 | Firma Fritz Keiper | Fitting for adjustably connecting a backrest member to a seat member |
US3955240A (en) * | 1975-04-05 | 1976-05-11 | Firma Wilhelm Bahmuller, Maschinen- Und Apparatebau | Multi-position safety lock joint, particularly for folding ladders |
US4216844A (en) * | 1977-07-20 | 1980-08-12 | Zarges Leichtbau Gmbh | Fitting for joints of ladder sections |
US4210224A (en) * | 1979-01-05 | 1980-07-01 | Kummerlin Nikolaus A | Longitudinally variable ladder |
Cited By (128)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4566150A (en) * | 1981-12-21 | 1986-01-28 | Little Giant Industries, Inc. | Ladder hinge and multi-position locking mechanism therefor |
US4619542A (en) * | 1984-03-23 | 1986-10-28 | Aprica Kassai Kabushikikaisha | Baby carriage grip rod locking mechanism |
US4697305A (en) * | 1985-02-14 | 1987-10-06 | Harold R. Wing | Release mechanism for locking hinge for multi-positioned ladder |
US4666328A (en) * | 1986-03-04 | 1987-05-19 | Woo Kyong Industrial Co., Ltd. | Positioning joint for folding ladders |
US4666327A (en) * | 1986-09-22 | 1987-05-19 | George Su | Joint for foldable aluminum ladders |
GB2206152B (en) * | 1987-06-27 | 1991-01-09 | Spraymatic Co | Supports for spray guns |
GB2206152A (en) * | 1987-06-27 | 1988-12-29 | Spraymatic Co | Supports for spray guns |
US4773503A (en) * | 1987-09-11 | 1988-09-27 | Robert L. Pease | Ladder hinge |
US4917341A (en) * | 1987-12-22 | 1990-04-17 | Mpm Music - S.R.L. | Trestle with crossed legs for supporting musical keyboards |
US4934485A (en) * | 1988-02-08 | 1990-06-19 | Robert Pease | Combination ladder and hand truck |
US4951780A (en) * | 1988-08-08 | 1990-08-28 | Kim Myung H | Combination ladder and height adjustable scaffold |
EP0369256A1 (en) * | 1988-11-12 | 1990-05-23 | KRAUSE-WERK GMBH & CO. KG | Hinge ladder |
EP0425786A1 (en) * | 1988-11-12 | 1991-05-08 | KRAUSE-WERK GMBH & CO. KG | Ladder |
US5074377A (en) * | 1988-11-12 | 1991-12-24 | Krause-Werk Gmbh & Co. Kg | Jointed ladder |
US5228535A (en) * | 1990-07-12 | 1993-07-20 | Mccarty George W | Folding ladder |
US5163532A (en) * | 1990-07-12 | 1992-11-17 | Mccarty George W | Folding ladder |
US5116025A (en) * | 1990-08-13 | 1992-05-26 | Sam Kiniry | Cantilevered, retractable handrail |
US5209215A (en) * | 1991-11-15 | 1993-05-11 | Saxon International, Inc. | Folding crossbow stock |
US5350038A (en) * | 1993-02-01 | 1994-09-27 | Lazarus Jonathan F | Foldable extension ladder and ladder sections therefor |
US5620272A (en) * | 1995-05-10 | 1997-04-15 | Sheng; Chim-Yuem | Adjustable joint assembly for ladder sections |
WO1999055997A1 (en) * | 1998-04-28 | 1999-11-04 | Henrik Lindberg | Ladder combined with three different transport functions |
US6196568B1 (en) * | 1999-03-12 | 2001-03-06 | Sunrise Medical Hhg Inc. | Robust adjustable rotary positioning mechanism |
US6488599B2 (en) | 2000-06-06 | 2002-12-03 | Lifetime Products, Inc. | System and method for basketball goal height adjustment |
US6343406B1 (en) * | 2000-08-14 | 2002-02-05 | Tom Yeh | Hinge on ladder |
US6688797B2 (en) * | 2001-07-13 | 2004-02-10 | Jae Yun Park | Hinge for foldable ladders |
US6711780B2 (en) | 2001-08-22 | 2004-03-30 | Sinclair Worldwide, Inc. | Hinge for collapsible ladders |
KR100458926B1 (en) * | 2002-01-26 | 2004-12-03 | 주식회사 매직캔 | Hinge for collapsible ladder |
US20030217888A1 (en) * | 2002-02-07 | 2003-11-27 | Dennis Simpson | Convertible ladder |
US20050109558A1 (en) * | 2002-02-07 | 2005-05-26 | Tricam Industries, Inc. | Convertible ladder |
US7264082B2 (en) | 2002-02-07 | 2007-09-04 | Tricam Industries, Inc. | Convertible ladder |
US6857503B2 (en) | 2002-02-07 | 2005-02-22 | Tricam Industries, Inc. | Convertible ladder |
US6886659B2 (en) | 2002-02-07 | 2005-05-03 | Tricam Industries, Inc. | Convertible ladder |
US7086499B2 (en) | 2002-04-05 | 2006-08-08 | Wing Enterprises, Inc. | Light weight ladder systems and methods |
US20050145437A1 (en) * | 2002-04-05 | 2005-07-07 | Moss Newell R. | Light weight ladder systems and methods |
US6866117B2 (en) | 2002-04-05 | 2005-03-15 | Wing Enterprises, Inc. | Light weight ladder systems and methods |
US20080257645A1 (en) * | 2002-11-11 | 2008-10-23 | Wing Enterprises, Inc. | Combination ladder, ladder components and methods of manufacturing same |
US8069948B2 (en) | 2002-11-11 | 2011-12-06 | Wing Enterprises, Inc. | Combination ladder, ladder components and methods of manufacturing same |
US20040140156A1 (en) * | 2002-11-11 | 2004-07-22 | Moss Newell R. | Combination ladders, ladder components and methods of manufacturing same |
US7364017B2 (en) | 2002-11-11 | 2008-04-29 | Wing Enterprises, Inc. | Combination ladder, ladder components and methods of manufacturing same |
US20120160609A1 (en) * | 2002-11-11 | 2012-06-28 | Wing Enterprises, Incorporated | Combination ladder, ladder components and methods of manufacturing same |
US8376087B2 (en) * | 2002-11-11 | 2013-02-19 | Wing Enterprises, Inc. | Combination ladder, ladder components and methods of manufacturing same |
US6892784B2 (en) | 2003-03-06 | 2005-05-17 | Paul A. Maas | Stabilized portable room divider |
US20040216277A1 (en) * | 2003-05-01 | 2004-11-04 | Jeffrey Beaver | Hinge and locking assembly for center-folding ladder |
US20040218968A1 (en) * | 2003-05-01 | 2004-11-04 | Jeffrey Beaver | Hinge lock indicator for center-folding ladder |
US20040226773A1 (en) * | 2003-05-01 | 2004-11-18 | Jeffrey Beaver | Rotation limiter for center-folding ladder |
US7140072B2 (en) | 2003-11-11 | 2006-11-28 | Cosco Management, Inc. | Lockable ladder hinge |
US20050121260A1 (en) * | 2003-11-11 | 2005-06-09 | Leng Lu H. | Lockable ladder hinge |
US8341806B2 (en) * | 2004-05-14 | 2013-01-01 | Werner Co. | Step stool, hinge and method |
US20080066261A1 (en) * | 2004-05-14 | 2008-03-20 | Parker Thomas W | Step stool, hinge and method |
US7093321B2 (en) | 2004-06-07 | 2006-08-22 | Cosco Management, Inc. | Lockable hinge |
US20050268434A1 (en) * | 2004-06-07 | 2005-12-08 | Burbrink Philip W | Lockable hinge |
US20050274571A1 (en) * | 2004-06-11 | 2005-12-15 | Dennis Simpson | Convertible fiberglass ladder |
US8025265B2 (en) | 2005-07-29 | 2011-09-27 | Lg Electronics Inc. | Stand for flat-panel display |
US20070023600A1 (en) * | 2005-07-29 | 2007-02-01 | Lg Electronics Inc. | Stand for flat-panel display |
CN1905078B (en) * | 2005-07-29 | 2010-07-21 | Lg电子株式会社 | Stand for flat-panel display |
US20090179126A1 (en) * | 2005-07-29 | 2009-07-16 | Chang Su Lee | Stand for flat-panel display |
US7520480B2 (en) * | 2005-07-29 | 2009-04-21 | Lg Electronics Inc. | Stand for flat-panel display |
US7407453B2 (en) | 2006-02-13 | 2008-08-05 | Shannon Christopher J | Self-storing basketball goal system |
US20070191149A1 (en) * | 2006-02-13 | 2007-08-16 | Shannon Christopher J | Self-storing basketball goal system |
US20070191148A1 (en) * | 2006-02-13 | 2007-08-16 | Shannon Christopher J | Self-storing basketball goal system |
US20070227819A1 (en) * | 2006-03-28 | 2007-10-04 | Layfield L D | Window cleaning ladder |
US20080181720A1 (en) * | 2007-01-29 | 2008-07-31 | Mobiletron Electronics Co., Ltd. | Joint positioning structure |
US20080178543A1 (en) * | 2007-01-29 | 2008-07-31 | Maas Paul A | Portable room divider with glide feet |
US20080185889A1 (en) * | 2007-02-01 | 2008-08-07 | Nathan Kipperman | Adjustable furniture |
US20090160150A1 (en) * | 2007-12-21 | 2009-06-25 | Mark Johnson | Folding scooter |
US8500147B2 (en) * | 2007-12-21 | 2013-08-06 | Radio Flyer Inc. | Folding scooter |
CN101960084B (en) * | 2008-03-07 | 2013-11-20 | 伟英企业有限公司 | Ladders, ladder components and related methods |
US9163455B2 (en) | 2008-03-07 | 2015-10-20 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
US8186481B2 (en) | 2008-03-07 | 2012-05-29 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
WO2009111746A3 (en) * | 2008-03-07 | 2009-12-17 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
US9784033B2 (en) * | 2008-03-07 | 2017-10-10 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods |
EP3048238A1 (en) | 2008-03-07 | 2016-07-27 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
US20160138335A1 (en) * | 2008-03-07 | 2016-05-19 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods |
US20090229918A1 (en) * | 2008-03-07 | 2009-09-17 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
US10767416B2 (en) | 2008-03-07 | 2020-09-08 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods |
US11788351B2 (en) | 2008-03-07 | 2023-10-17 | Little Giant Ladder Systems, Llc | Ladders, ladder components and related methods |
US20110018226A1 (en) * | 2009-07-21 | 2011-01-27 | Huffy Corporation | Pivot mechanism for scooters, tricycles and the like |
US8459679B2 (en) | 2009-07-21 | 2013-06-11 | Huffy Corporation | Pivot mechanism for scooters, tricycles and the like |
US20130026734A1 (en) * | 2010-11-26 | 2013-01-31 | Shanghai Magic Wheels Sporting Goods Co., Ltd. | Scooter with folding device and folding device |
US9016434B2 (en) | 2011-02-22 | 2015-04-28 | Wing Enterprises, Inc. | Ladders, ladder components and related methods |
US10501990B2 (en) | 2011-02-22 | 2019-12-10 | Wing Enterprises, Incorporated | Ladders, ladder components and related methods |
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